Seal-trap for waste-pipes



(No Model.)

J. MGGONNELL.

SEAL TRAP PoR WASTE. PIPBS.

Patented Nov. 30., `1886.

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UNiTnn STATES PATENT @Trina JOHN MCCONNELL, OF ERIE, PENNSYLVANIA.

SEALTRAP FOR WASTE-Pipes. A

SPECIFICATION forming part of Letters Patent No. 353,577, dated November 30, 1886.

Application filed February 8, 1886. Serial No. 191,169.

To all whom it may concern.-

Be itknown that I, JOHN MoCoNNELL, a citizen of the United States, residing at Erie,in the county of Erie and State oi' Pennsylvania,have invented certain new and useful Improvements in Seal-Traps for IVastePipes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of thisspecication.

My invention relates to sealtraps for wastepipes; and it consists in the improvements hereinafter set forth and described.

My invention is illustrated in the accompanying drawings, in which Figure l is a side elevation of my improved seal-trap with part of the side broken away, showing the internal mechanism thereof. Fig. 2 is a horizontal section of the same on line x in Fig. 1, looking in the direction of the arrow.

Like letters refer to like parts in all the iigures.

In the construction of my improvedseal-trap, A is a hollow receptacle or chamber having a projection, B, extending outward to one side of the sink wastepipe, the portion Cforming a portion of the wastepipe, the inlet-pipe being attached thereto at D, and the dischargepipe at E.

In the portion C, I place a valve-seat, F, faced on the under side to receive a valve. This valve G is made of a circular disk of metal ground to its sea-t F, or provided with a disk of rubber or other suitable packing material on its upper surface. This valve G is provided with a stem, H, which passes through the valve G, and extends upward to and is attached to a lever, I, by means 'of a pintle, I. If desired, the stem II may also be extended to and through an opening in a cross-bar, J, which operates to retain the valve G in a central position under its seat F 5 but this guidebar may be dispensed with if desired, as other convenient mechanism may be used for the purpose.

The lever I is mounted upon a support, K, by means of a pintle, 7s, and extends into the (No model.)

projection B of the chalnber A, where it is connected to the lower portion of a iioat, L. This /ioat L is preferably made substantially hemispherical in shape, and the leverI is preferably attached to the ilat side thereof by a crossAbar, N, attached to the lower end of the lever I, the ends of this cross-bar being turned up at N', where it is connected to the lioat by means of stud-pins N2, so that the float will rise perpendieularly, as illustrated by dotted lines in Fig. l. In the top of the portion B of the chamber A, I put a hand-hole, which is closed by ascrew-cap, O, which may be opened to remove any obstruction from the trap. I also make a hand-hole, which is closed by a screw-cap, I), in the portion of the chamber C below the valve-seat F, for the purpose of readily getting at the valve G when desired.

In the lower part of the portion B of the chamber A, and under the lever I, I place a small bell-crank lever, Q, one end of which projects through the side of the chamber, so that by turning it up the lever.I and float L can be raised suiiiciently to open the valve G, and permit all of the fluid in the chamber A to escape, to prevent freezing, or for any other purpose desired.

In operation, the water passing into the chamber A lifts the iioat L, which operates the lever I, depressing the valve G, and allowing the water to freely escape, until the iioat L sinks to such a point as to close the valve G against its seat F, when the balance of the water in the chamber Awill be retained by the closing of the valve G, leaving at all times a small depth of water over the valve G.

The amount of water in the chamber can be varied by the adjustment of the float L, so that it will close the valve at such depth of water in the chamber A as may be desired, thus at all times making a perfect seal against a backward pressure of foul gases from the sewer.

Having thus fully described my invention, so as to enable others skilled in the art to which it appertains to construct and use the same, what I claim as new, and desire to se- IOO having a valve-seat in the bottom thereof, and

4a valve opening downwardfrom such valveaction of the water on said float, substantially as and for the purpose set forth.

2. The combination, in a seal-trap for wastepipes, of a chamber adapted to be coupled into such waste-pipe and form a continuation thereof, and having a lateral extension to'one side of the line of said pipe, and a valve-seat in the bottom of the chamber in line with the inlet and outlet thereof, with a valve opening downward from said valve-seat, and a hemispherical iioat in said chamber connected to the upward-projecting stem 0f said valve by means of a lever, by means whereofsaid float operates said valve, and a bell-crank lever in the lower part of the laterally-projecting portion of said chamber for operating said' lever and float to drain the chamber, all substantially as and for the purpose set forth.

3. In a seal-trap for waste-pipes, acharnber provided with hand-holes and caps for closing the same, substantially as shown, and a valveseatin the bottom' of said chamber, incombination witha valve opening downward from said seat, and a oat Within saidchamber connectedto and adapted to operate said valve by means of a lever, and a bell-crank lever in the lower portion of nsaid chamber for raising the float so as to drain the chamber, substantially as and for the purpose set forth. y 4. In a seal-trap for waste-pipes, the chamber A, having the lateral projection B, and beingadapted to be coupled into a wastepipe, and the valve-seat F in the bottom of `said chamber, in combination with the downwardopening valve G, having an'upward-projecting stem, H, the lever I, and the iioat L, attached thereto within said chamber for operating said valve, and the bell-crank lever Q, adapted to raise the float and'open the valve for draining the chamber, all substantially as and forthe purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN MccoNNELL.

Witnesses:

L. D. rHANFORD,

P. GRAZIER. 

